Chemistry Elements Fun Facts

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Across
  1. 1. It is one of the most precious metals.
  2. 4. It is the only element that its atom can exist without neutrons.
  3. 5. It is commonly used in electrical wires and cables.
  4. 7. It is vital for building strong bones and teeth.
  5. 8. It is a semi-metal which is used to make computer chips.
  6. 9. This gas can relight a glowing splint.
Down
  1. 2. It contributes about 78% of the earth's atmosphere.
  2. 3. This gas is widely used in luminous advertisement signs.
  3. 6. It glows and burns and is associated with glowing skulls and graveyard ghosts.
  4. 7. This gas helps keep swimming pools clean.